Cultivator



(No Model.)

WITNESSES B. A. KNIGHT.

GULTIVATOR.

' 2,Sheets-Sheet 1.

Patented Oct. 10, 188 2.

INVENTOR B Y Mfg ATTORNEY (No Model.)

2Sheets-Sheet 2.

B. A. KNIGHT.

. "GULTIVATOR.

Patented Oct. 10, 1882.

INVENTOR BY W EEEIIT a w dwlll m w R1 ll. v N ai El I I a um m JQQKQSU H N l WITNESSES: fl

ATTORN Y UNITED STATES PATENT OEErcE.

BRADFORD A. KNIGHT, ()F BEATRICE, NEBRASKA.

CULTIIVATOR.

SPECIFICATION forming part of Letters Patent No. 265,830, dated October 10, 1882.

' Application filed April 26, 1882. (No model.)

To all whom it may concern:

Be it known that I, BRADFORD A. KNIGHT, ot Beatrice, in the county of Gage and State of Nebraska, have invented new and usefullmproveinents in Cultivators, of which the following is a full, clear, and exact description.

This invention consists in a peculiar con struction and arrangement of some of the parts of the machine, as will be hereinafter more fully described.

Reference is to be had to the accompanying drawings, forming part of this specification, in which similar letters of reference indicate corresponding parts in all the figures.

Figure 1 is a longitudinal sectional elevation of my improved cultivator, taken on the line 00 0c of Fig. 2. Fig. '2 is a plan view, one of the levers for lifting the plows being detached. Fig. 3 is a vertical section through one of the plow-stocks on line pg of Figs. 2 and 4. Fig. 4 is a rear elevation of one of the plow-stocks. Fig. 5 is a detail section on line a a of Fig. 1, showing the ratchet arrangement of the levers for lifting the plows out of the ground.

The wheels A are mounted on short axles B, secured to the longitudinal beams O of the truck-fiamcbythestud-bracketsD. Thebeams O extendforwardclose alongside of the wheels, a little beyond them at the front, where they are rigidly attached to the cross-beam E, to which the tongue F is attached, and forming what is practically the axle of the truck, said axle being projected ahead ofthe wheels. The plow-beams G are coupled to this beam by the universal joints H. The plow-stocks, which consist of the vertical parallel bars I and cross bars J'and K, are coupled to the rear ends of.

the plow-beam G by the universal joints L. Under each plow-beam is a parallel rod, M, connecting each plow-stock at N in the vertical axis ofjoint L, and with the beam E at 0 in the vertical axis of joint H. This connection maintains the plow-stock in vertical position when rising and falling by the vertical swing of the beam G. It also draws the plows along in the ground. Along theinside of each beam G is a parallel rod, P, connected to the beam E at Q, in the horizontal axis of thejoint H, and also connected to the plow-stock at R in the horizontal axis ofjoint L. This connection maintains the plow-stock parallel with plows of each stock will work alike as to depth,

althonghset one ahead ofanother, no matter how much the beam may swing up and down on the joint H, and they willcontinue alike as to the advance of one beyond the other, although set on opposite sides of the vertical axis of the plow-stock, no matter how much the beam Gr may swing horizontally on the joint H.

For shifting the plows relatively to their distances apart and to the advance of one beyond the other on the plow stocks, they are mounted on said plow-stocks by the vertical rods T, having an offset bend or crank, U, between the lower end, where the plow is at.- tached by a socket, V, and the upright part, where they are detach-ably and adjnstably attached to side bars, l,ot' the plow stocks by the hook-bolts X, allowing them to be turned readily as required to swing the plows by thecranks U. The wrist of this crank is out of parallel with the body of the rods T, preferably fornr ing an angle of about forty-five degrees with it, for the purpose of canting the plows either way by revolving them on said cranks, and of still further changingtheir direction and pitch by revolving the rod in its hearing. The plows are also fitted by their sockets \V, so that they can be turned readily on the rods, andbe. secured as desired by set-screws, nuts, or other devices.

The plow-rods T may be shifted forward and backward on the upper bolts, X, to alter their pitch by shifting the lower bolts, X, in the slots X in the bars .I of the plow-stocks.

To raise and lower the plows by the handlevers Y, the levers have a grooved sector-pulley, Z, to which the beam is connected by a chain, a, the said pulley being relatively arranged to thejoint H, so that the chain draws or winds thereon in the vertical axis'of said joint,in orderthat the beams will not be affected as to their lateral swing by being thus raised or lowered. The lovers have the usual ratchet,

b, for fastening them, for which I have provided fixed catches don the standards 0, that support the pivots fot' the levers, with which the ratchet is engaged and disengaged by lateral movements of the levers on their pivotsf, the pivots being made a little slack for that purpose.

To hold the plow-beams more or less apart, an extensible swivel-jointed rod, g, is arranged across the beams from frame-bars G and attached to them by eye-studs 71 which rod has a strong pin, 1', extending down through a slotted plate, j, on each beam G, the rod being located near the front ends of the beams, where, by shifting the swivel a little, the plows will be shifted to a greater cxtent.

For running the plows 0*. both stocks between the rows of eorn to throw the earth from the middle each way up to the rows, the beams will be adjusted closely together and the plows will be adjustedas shown in Fig. 2, the inner ones being advanced. If it be desired to first scrape the weeds away from the corn, the positions will be reversed, the outer plows being advanced and the inner ones set back.

\Vhen it is desired to straddle the corn by the plows of the two beams the beams will be shifted apart, and for throwing the earth up to the corn the outer plows will be advanced and the inner ones set back. In this case I propose to have a shield, 70, suspended a little inside of the inner plow and obliquely thereto, as shown in Fig. 2, by the arm 1, link Z, and chain at, to press back the leaning corn and protect it from injury by the plows, the arm and the chain being detachably connected .to the plow-stock for applying and removing the shield when desired.

The drivers seat a is mounted on a support consisting of a bar having its ends bolted to the frame-timbers U at 9, extending obliquely therefrom along the parts to 1", from Where it extends along parts t, parallel to each other, to the return-bend it, the said bar being projected rearwardly a suitable distance to'balance the truck by the rider. The seat is attached for adjustment along either member of this bar, also for vertical adjustment, by the standard 10, clip or, and set-screw 4 the clip being arranged to slide on the supporting-bar and the standard 10 arranged to slide in the clip, so that the set-screw y tightens both'the clip and the seat-standard at the same time.

I am aware that plows have before been hung on universal joints and kept upright by means of parallel bars, and I do not claim this, broadly, as my invention.

- Having thus described my invention, what I claim as new, and desire to secure .by Letters Patent, is

1. The combination, with the beam G and bar M, hung to the beam E by the universal joint H O, of the plow consisting of the parallel bars I for supporting the plows, the crossbar J. pivoted to the drag-bar M, and the crossbar K, horizontally journaled in boxes which are verticallyjournaled at L in ears projecting from the beam G, as shown and described.

2. The plows S, connected to bent or crank rods T U, in combination with plow-stocks I J K by hook-bolts X, as shown and described.

3. The combination of the plows S, connected to and fitted adjustably on bent rods or cranks T U, with the stocks I and means for adjusting them on said stocks, as shown and described.

4. The combination, with plow-beams G, of plow-stocks consisting of vertical bars I and cross-bars J K. pivoted to said beams, and having plow-rods T and plows S connected to said stocks, substantially as specified.

5. The combination of the shields K. the bars land l, and chain m with the plows S and plow-stocks, as shown and described.

(5. The combination of the swivel-jointed rod g, eyes it, and pins i with the laterally-adjustable plow-beams G and slotted platesj, attached to said beam, as shown and described.

7. The combination of fixed catches d with the ratchets b of the lever-pulleys Y Z, said le-- ver-pnlleys being arranged for lateral motion on their pivots f, substantially as specified.

8. The plow-rods T, connected to the plowstandards by upper and lower hook-bolts, X, and the lower hook-bolts titted adjustably in slots X of the plow-standards to alter the pitch of the plows, substantially as specified.

BRADFORD A. KNIGHT.

Witnesses:

I). A. KNIGHT, 'F. W. lVIAlTOON. 

